2-127286772-G-C

Position:

• chr2-127286772-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000122.2(ERCC3):​c.1273C>G​(p.Arg425Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ERCC3 NM_000122.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.24

Genes affected

ERCC3 (HGNC:3435): (ERCC excision repair 3, TFIIH core complex helicase subunit) This gene encodes an ATP-dependent DNA helicase that functions in nucleotide excision repair. The encoded protein is a subunit of basal transcription factor 2 (TFIIH) and, therefore, also functions in class II transcription. Mutations in this gene are associated with Xeroderma pigmentosum B, Cockayne's syndrome, and trichothiodystrophy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ERCC3	NM_000122.2	c.1273C>G	p.Arg425Gly	missense_variant	8/15	ENST00000285398.7	NP_000113.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ERCC3	ENST00000285398.7	c.1273C>G	p.Arg425Gly	missense_variant	8/15	1	NM_000122.2	ENSP00000285398	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.63
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.16
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.44	T;.
Eigen	Benign	-0.078
Eigen_PC	Benign	0.017
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.97	D;D
M_CAP	Uncertain	0.12	D
MetaRNN	Uncertain	0.59	D;D
MetaSVM	Benign	-0.42	T
MutationAssessor	Benign	1.3	L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-4.0	D;.
REVEL	Uncertain	0.57
Sift	Uncertain	0.0010	D;.
Sift4G	Uncertain	0.010	D;.
Polyphen		0.011	B;.
Vest4		0.84
MutPred		0.53		Loss of MoRF binding (P = 0.0331);Loss of MoRF binding (P = 0.0331);
MVP		0.87
MPC		0.70
ClinPred		0.99	D
GERP RS		3.4
Varity_R		0.92
gMVP		0.81

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs121913047; hg19: chr2-128044348;